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Podcast 721: Blakemore & Minnesota Tubes: Part II

Emergency Medical Minute

Release Date: 10/18/2021

Laboring Under Pressure Episode 4: Obstetric Emergency in South Africa with Dr. Meghan Hurley show art Laboring Under Pressure Episode 4: Obstetric Emergency in South Africa with Dr. Meghan Hurley

Emergency Medical Minute

Laboring Under Pressure Episode 4: Obstetric Emergency in South Africa with Dr. Meghan Hurley Contributors: Meghan Hurley MD, Travis Barlock MD, Jeffrey Olson MS3 Show Pearls Map of South Africa Referenced South Africa Geography Lesson There is a big disparity between Cape Town and its neighbor Khayelitsha. Cape Town is the legislative capital and economic hub of South Africa, known for its infrastructure, tourist attractions, and developed urban areas. Khayelitsha Township is a large informal settlement on the outskirts of Cape Town, with limited infrastructure and services compared to...

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Episode 928: Neutropenic Fever show art Episode 928: Neutropenic Fever

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls: What is neutropenic fever? Specific type of fever that is seen in cancer patients and other patients with impaired immune systems These patients are highly susceptible to infection Typically occurs 7-10 days after the last chemotherapy dose, this is when the immune system is the weakest It is useful to know the specific type of malignancy. For example, heme malignancies (ALL, AML, etc.) have more intense chemo and are at higher risk of neutropenic fever To qualify as a neutropenic fever, a patient must have one recorded temperature...

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Episode 927: Functional Gallbladder Syndrome show art Episode 927: Functional Gallbladder Syndrome

Emergency Medical Minute

Contributor: Jorge Chalit-Hernandez, OMS3 Typically presents with biliary colic Right upper quadrant abdominal pain lasting more than 30 minutes and subsiding over several hours Often associated with fatty meals but not always Must rule out other causes of pain Peptic ulcer disease - typically presents with epigastric pain Pancreatitis - pain that radiates to the back or family history of pancreatitis Laboratory workup  LFTs including ALT, AST, and alkaline phosphatase are within the reference range Lipase and amylase within the reference range Imaging workup ...

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Episode 926: Supraventricular Tachycardia show art Episode 926: Supraventricular Tachycardia

Emergency Medical Minute

Contributor: Taylor Lynch MD Supraventricular tachycardias (SVTs) arise above the bundle of His The term SVT includes AV nodal reentrant tachycardia (AVNRT), atrioventricular reentrant tachycardia (AVRT), atrial tachycardia, atrial fibrillation, atrial flutter, and multifocal atrial tachycardia  AVNRT is the most common form of SVT Paroxysmal Spontaneous or provoked by exertion, coffee, alcohol, or thyroid disease More common in women (3:1 women:men ratio) HR 160-240 Narrow complex with a normal QRS Unstable patients receive synchronized cardioversion at 0.5-1 J/kg ...

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Episode 925: Table Sugar for Tongue Entrapment show art Episode 925: Table Sugar for Tongue Entrapment

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Pediatric case study where the child’s tongue was stuck in the opening of a hard plastic drink lid Entrapment restricts circulation which causes fluid to build and the tongue becomes more edematous with time There is a risk of ischemia with prolonged entrapment Initially tried 2% viscous lidocaine for analgesia and lubricant The ER recognized that this mucosal, edematous tongue could benefit from the trick for ostomies and rectal prolapses → table sugar! Sugar granules absorb water which decreases tissue edema This option...

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Episode 924: Pregnancy Cold Remedies show art Episode 924: Pregnancy Cold Remedies

Emergency Medical Minute

Contributor: Megan Hurley, MD Educational Pearls: Fevers Tylenol Up until 20 weeks NSAIDs are ok but after 20 weeks they are contraindicated Can limit the amount of amniotic fluid produced Can lead to growth restriction Can cause premature closure of the ductus arteriosus Cough Cough drops Humidifier Guafenesine and dextromethorphan (Mucinex) is not well studied but is probably ok with caution in certain circumstances such as post-tussive emesis causing poor PO intake and weight loss Congestion Flonase (Fluticasone nasal spray) Nasal rinses Humidifier 1st...

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Episode 923: Blunt Cerebrovascular Injury show art Episode 923: Blunt Cerebrovascular Injury

Emergency Medical Minute

Contributor: Travis Barlock MD Educational Pearls: Assessment of head and neck vascular injury due to blunt trauma Symptomatic patients require screening head and neck CT angiography EAST guidelines include the following criteria for a screening CT angiography in blunt head trauma: Unexplained neurological deficits Arterial nosebleed GCS < 6 Petrous bone fracture Cervical spine fracture Any size fracture through the transverse foramen LeFort fractures type II or type III EAST guidelines include a grading scale for vascular injury: Grade I: Luminal irregularity...

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Episode 922: Chest Tube Irrigation show art Episode 922: Chest Tube Irrigation

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Hemothorax: blood in the pleural cavity, most commonly due to chest trauma Treatment: thoracostomy tube for blood drainage helps to avoid clotting, scarring, and infection A recent study looked at patients with hemothorax who either received or did not receive thoracic irrigation with saline Evaluated incidence of secondary intervention, such as video-assisted thoracoscopic surgery (VATS), for persistent hemothorax Patients who received irrigation had a slight decrease in secondary intervention frequency Multi-center study -...

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Episode 921: Pediatric Hypoglycemia show art Episode 921: Pediatric Hypoglycemia

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls: When it comes to hypoglycemia, the age dictates possible causes Neonate: Hormonal deficiency Congenital Adrenal Hyperplasia (21-hydroxylase deficiency, 11β-hydroxylase deficiency) Primary or Secondary Adrenal Insufficiency leading to cortisol deficiency  Hypopituitarism Inborn errors of metabolism Systemic infection (Under 30 days old should trigger a full infectious workup) Toddler Accidental ingestions Sulfonylureas such as glipizide or glyburide Older children Addison’s Disease (Hypocortisolism) ...

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Laboring Under Pressure Episode 3: Hypertensive Disorders of Pregnancy with Dr. Kiersten Williams show art Laboring Under Pressure Episode 3: Hypertensive Disorders of Pregnancy with Dr. Kiersten Williams

Emergency Medical Minute

Contributor: Kiersten Williams MD, Travis Barlock MD, Jeffrey Olson MS3 Show Pearls Hypertensive disorders of pregnancy are one of the leading causes of maternal mortality worldwide. Hypertension (HTN) complicates 2-8% of pregnancies The definition of HTN in pregnancy is a systolic >140 or diastolic >90, measured 4 hours apart There is a range of HTN disorders Chronic HTN which could have superimposed preeclampsia (preE) on top Gestational HTN in which there are no lab abnormalities PreE w/o severe features Protein in urine Urine protein >300 mg in 24 hours Urine...

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More Episodes

Contributor: Dylan Luyten, MD

Educational Pearls:

  • To place a Blakemore/Minnesota Tube:
    • Insert into esophagus under visualization
    • Inflate gastric port with 60 cc of air and obtain a chest xray to ensure the balloon below the diaphragm
    • Once confirmed, place a total of 500cc of air into the gastric balloon via the gastric port
    • Tie a liter saline bad to the tube using Kerlix and hang it off an IV pole or other object to provide about 2 lbs of traction
    • Now the the tube is in place under traction, attach a manometer to the esophageal balloon port
    • Provide low pressure to tamponade a variceal bleed, which is about 33 mmHg
  • This is a temporizing measure and often patients need to get a Transjugular Intrahepatic Portosystemic Shunt (TIPS) from interventional radiology for more definitive treatment

References

Powell M, Journey JD. Sengstaken-Blakemore Tube. [Updated 2021 Jul 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK558924/

Amazing video of placement by EM:RAP ProductionsPlacement of a Minnesota Tube for Bleeding Varices

Summarized by John Spartz, MS4 | Edited by Erik Verzemnieks, MD

 

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